Board beveler



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C. A. LIEB.

BOARD BEVELER. No. 392,616. Patented Nov. 13, 1888.

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3. Sheets-Sheet 2,

B. E TI. L Aw C. a. d 0 M 0 m BOARD BEVELER.

Patented Nov. 13,

(No Mael.) 3 sheets-sheet 3.

G. A. LIEB.

BOARD BEVELER.

No. 892,616. lPatented Nov. 13, 1888.

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CHARLES A. LIEB, OF NEV YORK, N. Y.

BARD=BEVELER.

SPECIFICATION forming part of Letters Patent No. 392,616, dated November 13, 1888.

(No model.)

Fo @ZZ whom it may concern:

Be it known that I, CHARLES A. LIER, a citizen of the United States, and a resident of New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Book-Board Bevelers, of which the following is a specifica` tion.

My invention relates to improvements in beard-bevelers,7 so called, they being machines for beveling the edges of pasteboard, straw-board, wooden slabs, leather, &c., being especially used by book-binders; and my invention consists in the construction and arrangements of the parts of the machine shown in the drawings hereof, and hereinafter described and claimed.

In the drawings the same parts are designated by the same referencelctters in all the gures.

Figure l illustrates a longitudinal vertical section of the machine. Fig. 2 illustrates a front elevation of the machine. Fig. 3 illustrates a top plan view of the machine.

A is the frame of the machine. It may be made of such material as desired, but preferably of iron.

B is a knife-bearing frame, arranged to slide in ways on the top of the table or frame of the machine.

G is a lever, pivotcd at C and connected with the knife'frame by means of a link, D. It is caused to reciprocate and carry the knifeframe to and fro across the machine by means of the roller E, fastened to the driving-wheel F. This wheel F is caused to revolve in any desired manner.

G is the knife. It is set at an angle across the frame B and is screwed to it, and immediately in front of it is an opening, H, through the frame, by means of which the shavings drop to the floor.

I is an. adjustable inclined table, upon which the material to be beveled is placed.

J is a clamp,which holds the material firmly in place upon the inclined table I during the shaving operation. It is caused to clamp the material firmly by the action of the cam K operating on the rocking lever L, the rod M, link N, and shaft O, on which the clamp .I is fastened. The arrangement and adjustment of theparts are such that the knife shears across the lower edge of the clamp, which practically constitutes the counterpart edge or blade for the knife. It is not necessary that the knife should touch the lower edge of the clamp, and I prefer that it should not-simply that the lower edge of the clamp should be so near the knife during the shearing operation that the material will be sustained by it. A As soon as the shearing act has been performed,the roller on the end ofthe rock-shaft L passes into the portion of the cam of less diameter seen at O', and the clamp is thereby released and the Work can be taken lout and turned to presentanother edge, or another piece may be inserted.

P is a gage to determine the degree of projection of the material beyond the edge of the clamp. It is hung by the arms Q Q looselyon the shaft O, and when the knife-frame B is re tracted it drops down in front of the lower edge of the clamp .I and of the inclined table I, and affords a supportvand gage for the edge of the material which is to be sheared or beveled. As the knife-frame B advances, however, this gage is lifted out of the path of the knife by means of the inclincs RR, one on each edge of the knife-frame, with which inclincs the ends of the gage engage.

In order that the degree of bevel may be changed to meet the requirements of different kinds of work, it is necessary that the table I and the clamp and gage should be adjustable. This I accomplish as follows: The lower edge of the table I is pivoted on trunnions a a, which turn in bearings b b, made in the uprights e e, one on each side of the machine, and the shaft O (to which the clamp J is fastened, and on which the gage l? is loosely hung) turns in boxes d d, which slide in ways on the edge of the table I, and these boxes can be caused to move toward and from the lower edge of the table I by means of the pivoted lever e. W'hen this lever is operated, it is necessary that the rigid connection between the link N and the shaft O should be broken. For this purpose, I provide a set-screw, f, by which the link N can be clamped to the shaft O at such place as may be desired; and in order that the table I may be held at its desired angle I provide clamp-screws g g, one at each side of the machine, which respectively pass through radial IOO slots h in the nprights c c, and,being tightened, they hold the table at such right angles as may be desired.

From the foregoing it will appear that thc angle of the table I may be made such as desired, and that the clamp J may be moved as required,- by the change of angle of the table l, so that its lower edge will be properly presented to the knife to act as the counterpart blade or sustainer forthc material, and that the gage will also always maintain its proper relation to the other devices in this part of the machine.

The apparatus is started and stopped by means of a foot-treadle, a', which operates a friction-clutch lof any desired construction. I do not explain its special construction, because it forms no part of my invention, and any other suitable device may be substituted for it.

I do not limit myself `to the details of construction shown and described, because they may be somewhat departed from and still my invention be employed.

Having described my invention, I claim- 1. The combination of a reciprocatingknifebearing frame, an adjustable inclined table located above the knife, an automatically-acting movable clamp, and an automatically-acting gage, substantially as set forth.

2. The combination of a reciprocating knife` bearing frame, a table inclined to the knife and located above it, a clamp to hold the material on the said table, and a movable gravity-acting gage, substantially as set forth.

3. The combination of a reciprocating knife,

a table inclined to the knife and placed above it, and an automatic clamp to hold the material on the said table, the clamp and the table being adjustable relative to the knife, substan-v tially as set forth.

4L. The combination of an inclined table placed above the knife, a pivoted clamp, and a reciprocating knife, the clamp being constructed and arranged to serve as the counterpart blade for the knife or sustainer for the material being eut and to automatically release the material after each stroke of the knife, substantially as set forth.

5. The combination of a gage and inclines on the knifeframe, whereby the gage Will be lifted out of the path of the knife as the knifebearing frame advances, substantially as set forth.

6. The combination of a reciprocating knife, an inclined table located above the knife, and an automatic movable gravity-acting clamp constructed and arranged to clamp the material upon the table, the lower edge whereof is constructed and arranged to serve as the counterpart blade for the knife or the sustainer for the material being cnt, substantially as set forth.

Signed at New York, in the county of New York and State of New York, this 18th day of January, A. D. 1888.

CHARLES A. LIER.

Vitnesses:

ADoLPn ZINN, PHILLIPS ABBOTT. 

